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  1. ECU skipped second A1 service?

    General Maintenance
    So I have about 15.9k miles on my si. For my first A1 service, I took my car in at around 4000 miles, because I am used to having the oil changed on my car more frequently than recommended. At the time, the ECU was showing 30% oil life. Next, I had my B1 service (which for those of you who...